Music-leaf turner.



FrH- JOHNSTON.

MUSIC LEAF TURNER,

APPLICATION FILED JULY 10,1917.

2 SHEETS-SHEET 1- Lgw/ 5 INVENTOR ATTORNEY F. H. JOHNSTON.

MUSIC LEAF TURNER.

APPLlCATlON FILED JULY 10, 1917.

1,253,181. Pittllted Jan. 8,1918.

2 SHEETS-SHEET 2. $6. 6.

ATTORNEY finger, when it is desiredto turn asheet ofronnnsr H... Jonnsronfor. TOLEDO, 01110.

MUSIC-LEAF rcniwnn.

Specification of Letters Patent.

, fatented Jan. 8,1918.

Application filedJu1y-110,1917.- Serial No. 179,760.

To all whom it may concern:

Be it known that I, FoRREs'r H; JOHNSTON,

a citizen of the United States, residing-am provements in Music-Leaf'Turners, of which the following is a specification.

This invention comprehends the provision of a music leaf turner, which can be conven--..

iently operated by a slight touch of the music, thus eliminatinginterruptions in the playing for this purpose, and allowing steady'and propertime to be obtained.

The nature and advantages of theinven-i tion will be better understood when the following detail description is read in connection with the accompanylng drawings, the

Fig. 2 is a sectional view takenon line 2-2 of Fig. 1 looking from the top.

Fig. 3 is a sectional view taken on line 3-3 ofFig. 1 showing the mannerinwhich the sheet carrying arms are held in normal position. v Fig. 1 is a similar view showing one of the arms released,

Fig. 5 is a similar view showing the 'pOSi'r tion of parts subsequent. to therelease of.

said section. a

Fig. 6 is a perspectiveview of thesubframe. 1

Fig- 7 is a sectional view taken. onzline 7-7 of Fig. 1.

The devicepost 11 is a plurality of music sheet. turning frames 12, two .beingshown in thisparticular instance, and each being of substantially 'u-shaped formation 5 with itheir parallel limbs 13 disposed horizontally. Each frame/ 12 is provided with-a hinge :14.- adja cent the opposite extremities of the ve-rti-,.:

cally disposed portion of the frame, while the hinges include a'yoke 15 the. terminals forming the subject matter iof my invention comprises an elongated .base 10 from a point approximately central= of; which rises a post 11.. Mounted'mpomthe;

ofwhich are adapted to be received within holes or openings 16 in the post 11. In this manner the frames 12 are mounted for hori' zontal swingingmovement, but it is to 'be"60 observedithat the yokes 15 are formed with collars 17 which serve to space the frames the requisite distance from the post 11 to permit of the proper swinging movementof the frame as will be readily understood.- Projecting from the base 10 areextensions 182 which are adapted to be arranged b'e neath the edge ofthe ordinary music rest ofaa-pianoor organ,- it being understood that. these-rests are mounted for vertical swing ing? movement, and when'theextensions 18f are placed beneath the rest the device will. be p'roperly supported upon thepiano. Mounted upon'the base 10 and at the right side of the post 11 is a casing 19 in which is: 7

I arranged the mechanism for holding the frames 12- normally at the right side of-the post, and yet permit of the release of the' frames singly, when it isdesiredto turn thed. sheet ofmusic, at whichtime the particular frame released is swung to the left side of the post under the influence of one of the springs20. The mechanism for this purposepreferably includes a horizontally disposed: lever 21-which is pivoted at a point in its length as at 22, the lever being provided-with an inclined surface "23 and a shoulder 24; One end of the lever is securedto the adg jacentextremity of a vertically disposed coil spring 25, the opposite extremity-being se cured to the bottom of the casing 19, the spring serving to normally maintain the lever-21 horizontally, and consequently'open' ates to; automatically returnthe lever to this position subsequent to: any movement of the lever. An arm 26 is vertically disposed within-the casing and-pivotally connected-' withthe lever-21 as at 27, the arm projecting;

a slight distance'abovethe .lever 21 and the upper edge of the casing. A- horizontallydispose'd'coil sprin '28 hasone end connected to the arm 26 adjacent its lower end, the opposite'end of the spring being connected to the opposed wall of the casing, whereby the spring 28 serves to normally-maintainthe arm 26 in right angular. relation w'1thre specttothelever 21. As shownin-Fig. 3, the lower limbs 13 of the respective frames 12- are arranged behind the shoulder 24: of the lever 21 in the upper extremity of the arm 26, and in this manner the frames are normally maintained at the right of the post.

When it is desired to turn the sheet of music supported by the frame arranged behlnd the shoulder 24, the lever 21 is moved upon its pivot to lower the shoulder 2% out. of en gagement with the said frame 12, thus re leasingthe latter and permitting the frame under the influence'of one'of the springs 20 to swing to the left hand side of the post.

The lever 21 is actuated for this purpose by depressing a finger actuating element 29 which is connected to the lever through the instrumentality of a trip rod 80. As shown in Fig. 4, when-the lever 21 is actuated in the manner just described to effect a release of one ofthe frames 12, the'arm 26 assumes the position shown in Fig. 4, which holds the" when the".

other frame against movement. lever 21 has'been moved to its inactlve position'by depressing the element 29, the spring 25 is placed under tension, so'thatwhen pres-' sureis' removed from the element 29, the spring 25 functions to. automatically return the lever to its normal position. However during thereturn movement-ofthe lever 21 toits normal position, the arm 26 is moved to the position illustratedin Fig.5, in which position it is out of the path of movement *ofthe frame 12 with which it had been presaid frame.

viouslygengaged. This frame under the influencev of its associated spring-20, is moved past the arm 26 into contact with the shoulder 2% of the lever.

the right of theframe by reason of its engagement with the shoulder 24, until the element 29 is again depressed to actuate the lever 21 in. the manner to effect a release of i In settting the device, the frames'are merely swung to the right of the post 11, the inclined surface 23 of the lever; preventing binding between the parts as the frames are swung intonormal position, to

engage behind the shoulder 2% of the lever and the upper extremity of the arm 26. Se-

facilitate the turning thereof as will be readily understood.

In F i g. 6 I have shown a perspective view of what I term a sub-frame, this frame :be-

which embodies a substantially L-shaped base member 33 which extends transversely As the parts are brought to rest, the said section12 is held at cured to the uppermost limb 18 of each of of the post Rising from the vertically disposed portion 34c of the frame is a pair of spaced wire elements 35 and 36 respectively ofsubstantially inverted U-shaped formation, the elements 35 cooperating with the horizontally disposed portion of the frame to support the front and back sheets of musie, orwhatmay be better termed the cover. The front and rear sheets of music rest against the wireelements 35 and 36 re-- spectively, while the loose sheets are clamped upon the frames '12, and the latter subsequently positioned at the right of the post llyand immovably held in this posisition by the mechanism hereinabove de-- scribed. When it 1s desired to return the sheet'of music next in order, the element '29 is depressed, thus'releasingthe' frame-sup-' Fromthe foregoing description it will be manifest that l have devised a means whereby a sheet of music can be qulckly turned when des1red,w1th0ut causing any interruptions in playing, and permitting the player to maintain steady and proper time. I de slre to have it'understood that what 13 herein shown and described constitutes the preferred embodiment of the invention to which I do not limit myself, and that such-changes in the construction and arrangement ofparts may be resorted to when desiredas fall within the scope of what is claimed,

What is claimed is: A music leaf turner comprising a base, a post rising therefrom, a plurality of leaf supportingframes mounted upon the post for independent swinging movement, a member on'said base,-a' 'horizontally'disposed lever pivoted in its length upon said member and formed to provide a shoulder along one edge to engage'one of said frames, an arm pivoted to said lever with one extremity projected above said edge of the lever toengage the other of said frames, resilient means for normally holding the arm in right angular relation to said'lever, means for rocking the lever to disengage said shoulder from one of the frames, resilient means operating to automatically return V position. 111g disposed at the rear of the post 11, and

In testimony whereof I aflix mysignature. I

FORREST H. JOHNSTON.

coples of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D; C. v 

